Emmanouel T. Michailidis

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High-altitude platforms (HAPs) are one of the most promising alternative infrastructures for realizing next-generation high-data-rate wireless networks. This paper investigates the application of multiple-input-multiple-output (MIMO) techniques to HAP-based systems and proposes a 3-D geometry-based single-bounce reference model for Ricean fading channels.(More)
This paper proposes a three-dimensional (3-D) geometry-based three-cylinder scattering model for multiple-input-multiple-output (MIMO) mobile-to-mobile (M2M) fading channels in relay-based amplify-and-forward (AF) cooperative networks. Non-line-of-sight (NLoS) propagation conditions are assumed in the transmission links from the source mobile station to the(More)
High-altitude platforms (HAPs) are considered as an alternative technology to provide future generation broadband wireless communications services. This paper proposes a three-dimensional (3-D) geometry-based reference model for wideband HAP multiple-input– multiple-output (MIMO) channels. The statistical properties of the channel are analytically studied(More)
As the development of next-generation wireless communication systems envisages the synergetic integration of heterogeneous terrestrial and aerospace networks, high-altitude platforms (HAPs) could play a key role, acting as transparent relay stations in the stratosphere by transferring information from an uplink to a downlink channel. This paper deals with(More)
Research on mobile satellite and high-altitude platform (HAP) systems (MSHSs) has recently proliferated because of the allocation of additional spectrum, the intense standardization efforts from different international institutes, the detailed studies pursued by the European [European Space Agency (ESA)], French (CNES), and Japanese (JAXA) space agencies,(More)
For the terrestrial infrastructure, the multiple-input multiple-output (MIMO) architecture is a key technology that has brought the wireless gigabit vision closer to reality. Satellite communication systems have not been immune from this wave of innovation, and theoretical and experimental efforts have recently been devoted to the investigation of the(More)
This paper proposes a design approach to construct a high rank multiple-input multiple-output (MIMO) channel matrix in line-of-sight (LoS) propagation environment, when high altitude platforms (HAPs) are involved. This approach enhances the performance of systems, which can not utilize the MIMO gain introduced by independent and identically distributed(More)
High altitude platforms (HAPs) are one of the most promising alternative infrastructures for realizing next generation wireless networks. Considering a HAP-based communications system, this paper investigates the capacity of spatially and temporally correlated multiple-input multiple-output (MIMO) channels achieved with uniform linear arrays (ULAs). In(More)